In terms of both food quality and romantic settings, good starting points are Bartolotta (Wynn, request one of the outdoor cabana tables), Circo (Bellaggio), and Sinatra (Encore). Zefferino (Venetian) is also a nice setting, but can not quite be put in in the class of the first three in terms of food quality. Some may claim Valentino (Venetian) to be romantic, but on our visits the room come off as being a little cold.